1640133006 has 16 divisors (see below), whose sum is σ = 3281845248. Its totient is φ = 546447800.

The previous prime is 1640132993. The next prime is 1640133017. The reversal of 1640133006 is 6003310461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52080 + ... + 77411.

It is an arithmetic number, because the mean of its divisors is an integer number (205115328).

Almost surely, 2^1640133006 is an apocalyptic number.

1640133006 is an abundant number, since it is smaller than the sum of its proper divisors (1641712242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1640133006 is a wasteful number, since it uses less digits than its factorization.

1640133006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131607.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1640133006 is about 40498.5556038731. Note that the first 3 decimals coincide. The cubic root of 1640133006 is about 1179.3055873109.

Adding to 1640133006 its reverse (6003310461), we get a palindrome (7643443467).

The spelling of 1640133006 in words is "one billion, six hundred forty million, one hundred thirty-three thousand, six".